Everyone who observes himself doubting observes a truth, and about that which he observes he is certain; therefore he is certain about a truth. Everyone therefore who doubts whether truth exists has in himself a truth on which not to doubt.... Hence one who can doubt at all ought not to doubt the existence of truth.
Saint AugustineWe take for granted the slow miracle whereby water in the irrigation of a vineyard becomes wine. It is only when Christ turns water into wine, in a quick motion, as it were, that we stand amazed.
Saint Augustine